Automatic fire-extinguisher



(Model?) G. BARNES.

Automatic Fire Extinguishr.

Patented April 5, i88l.

XIJVEYI'JICIP H UNITED STATES PATENT OFFICE.

CHARLES BARNES, OF DAYTON, KENTUCKY.

AUTOMATIC FIRE-EXTINGUISHER.

SPECIFICATION forming part of Letters Patent No. 239,639, dated April 5,1881.

Application filed February 10,1881. (ModeL) To all whom it may concern:

Be it known that I,-GHARLEs BARNES, of the city of Dayton, county ofCampbell, and State of Kentucky, have invented certain new and'usefulImprovements in Automatic Fire- Extinguishers, of which the following isa specification.

This invention relates to that class of automatic fire extinguishers inwhich the supply of water to a perforated distributer is controlled by avalve which is held to its seat by fusible solder until released byheat. Its object is to relieve the fusible joint from strain, whethercaused by the expansion and contraction of the metal, by the pressurenecessary to make a tight joint between a. metal valve and valveseat, orby carelessness or want of skill in workmen seating metal valves tootightly. Its object is also. to avoid the trouble and expense ofgrinding the valves to their seats.

These objects are accomplished by providin g the supply-port of thedistributer with an elastic cup-valve, so arranged as to relieve thejoint from strain or pressure and prevent a flow of water to thedistributer until the joint is melted. l

The accompanying drawings show different forms of distributers providedwith my improvements.

Throughout the different views, A represents the supply-port or neck ofthe distributer, screw-threaded upon the outside for attachment to thesupply-pipe. V

B is an elastic cup-valve, made preferably of rubber.

U is the valve-rod, upon the end of which the cup-valve B is secured bya screw passing through the bottom of the cup and into the rod.

Dis a perforated distributer.

In Figures 1 and 2 the valve-rod passes through the cap of thedistributer and rests upon a bar, E, one end of which is pivoted in alug, F, which depends from the cap, and

the otherend is provided with a hinged latch, G, which is secured to thecap by a fusible solderjoint.

In Fig. 3 the valve is held withinthe supplyport by the lower end of thevalve-rod resting upon a plug, H, which may be of fusible material or ofmetal fusibly soldered to the distributer-shell.

In Fig. 4. the end of the valve-stem rests upon a cap, H, which issecured to the shell of the distributer by a fusible joint.

Fig. 5 difiers from Fig. 3 in having the valve rod resting upon a screwwhich is tapped through the cap H.

Fig. 6 is an enlarged side elevation of the elastic cup-valve and theupper end of the valve-rod. The upper end of rod 0 is of a size tofreely enter the supply-port A. Its upper corner. is rounded or beveledoff at c, to allow the pressure of water to expand the rubber into thewedge-shaped cavity to secure a perfect joint.

I claim- I. In an automaticfire-extinguisher, the combination,substantially as specified, of a distributer with an elastic cup-valvecontrolling the supply of water to the distribnter and held in place byfusible solder.

2. In an automatic extinguisher, the combination, as specified, ofdistributer D and supply-port A with an' elastic clipevalve located andheld within said port by its rod 0, said rod resting upon afusibly-jointed bearing.

3. In an automatic fire-extinguisher, the combination, substantially ashereinbefore set forth, of distributer D, supply-port A, cupvalveB, andvalve-rod C, said rod being beveled or rounded at c, for the purpose setforth.

CHAS. BARNES.

Witnesses SAML. F. Oovmeron, JOHN I. CovINe'roN.

